| 摘要 |
The invention relates to an interferometric measuring instrument for taking optical measurements on skin structures. Said interferometric measuring instrument comprises a beam splitter (12) for splitting an input beam (11) emitted by a light source (10) into an object beam (13.1) and a reference beam (14.1), an object path (13) via which the object beam (13.1) is directed to the skin and the object beam (13.1) that is back-scattered by the skin structures is conducted back, a reference path (14) via which the reference beam (14.1) is directed to a reference (16) and is conducted back therefrom, and a detector device (18) for absorbing the combined and interfering radiation of the back-scattered object beam (13.1) and the reference beam (14.1) that is conducted back and evaluating the intensity modulation resulting from the interference. In order to optically measure the blood sugar concentration in a reliable and rapid fashion, for example, an implant (20) whose refractive index is different from that of the surrounding skin substance and which encompasses a front side that faces the incident object beam (13.1) and a rear side that faces away therefrom is introduced into the skin in order to back-scatter a portion of the object beam (13.1) directed into the skin. |
